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Water Encyclopedia - Ground Water
  • PDF
  • English
  • Year: 2005
  • Author: Jay H. Lehr, Jack Keeley
Water Encyclopedia: Water Quality and Resource Development
  • PDF
  • English
  • Year: 2005
  • Author: Jay H. Lehr, Jack Keeley, Janet Lehr
Alternative energy and shale gas encyclopedia
  • PDF
  • English
  • Year: 2016
  • Author: Keeley, Jack W.; Kingery, Thomas B.; Lehr, Jay H
Water Encyclopedia, Volumes 1-5
  • PDF
  • English
  • Year: 2005
  • Author: Lehr, Jay; Keeley, Jack; Lehr, Janet (Eds.)
Environmental Instrumentation and Analysis Handbook
  • PDF
  • English
  • Year: 2004
  • Author: Randy D. Down, Jay H. Lehr
Environmental Instrumentation and Analysis Handbook
  • PDF
  • English
  • Year: 2004
  • Author: Randy D. Down, Jay H. Lehr